Item 10.4
1.5 mm thick corrugated fibre glass sheet ridging
Considering 30 rft. of work
(a) Cost of material
(i) Cost of fibre glass in/c 10% laping 33 rft. @ 92 Per rft. = 3036
(ii) Cost of screw, washer etc. 0.03 = 91.08
(b) Labour
(i) Carpenter 1 No. @ 300 each = 300
(ii) Helper to carpenter 1 No. @ 200 each = 200
Total = 3627.08
Profit 0.1 = 362.71
Overhead 0.035 = 126.95
= 4116.74
Add VAT with adjustment factor 1.04712 0.045 = 193.98
Grand total = 4310.72
Rate per rft= 143.69
Rate per rm.= 471.45
Say, 471 .00 Per rm.
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